[Webkit-unassigned] [Bug 87985] New: [GTK] Implementation of GraphicsContext does not save/restore ImageInterpolation correctly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=87985

           Summary: [GTK] Implementation of GraphicsContext does not
                    save/restore ImageInterpolation correctly
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: Gtk
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: msanchez at igalia.com
                CC: alex at igalia.com, mrobinson at webkit.org


After the patch for bug 87853, layout test fast/canvas/canvas-imageSmoothingEnabled.html has been consistently failing in the bots, with the following diff:

--- /home/slave/webkitgtk/gtk-linux-64-release/build/layout-test-results/fast/canvas/canvas-imageSmoothingEnabled-expected.txt 
+++ /home/slave/webkitgtk/gtk-linux-64-release/build/layout-test-results/fast/canvas/canvas-imageSmoothingEnabled-actual.txt 
@@ -23,9 +23,9 @@
 PASS left_of_center_pixel.data[1] !== 0 is true
 PASS left_of_center_pixel.data[2] !== 0 is true
 Test that restoring actually changes smoothing and not just the attribute value. We are restoring to a point where imageSmoothingEnabled is set to false.
-PASS left_of_center_pixel.data[0] is 0
-PASS left_of_center_pixel.data[1] is 0
-PASS left_of_center_pixel.data[2] is 0
+FAIL left_of_center_pixel.data[0] should be 0. Was 63.
+FAIL left_of_center_pixel.data[1] should be 0. Was 63.
+FAIL left_of_center_pixel.data[2] should be 0. Was 63.
 PASS successfullyParsed is true

 TEST COMPLETE

See two comments by Stephen White in that bug for some hints on what could be going on:
https://bugs.webkit.org/show_bug.cgi?id=87853#c8
https://bugs.webkit.org/show_bug.cgi?id=87853#c9

Adding to test_expectations.txt in the meanwhile

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